EP0406784A2 - Elektronisches Polynomisches Interpolationsgerät für numerische Steuerungen von Werkzeugmaschinen, besonders für Fräsmaschinen für die Herstellung von Stanzen und mit diesem Gerät ausgerüstete Maschinen - Google Patents

Elektronisches Polynomisches Interpolationsgerät für numerische Steuerungen von Werkzeugmaschinen, besonders für Fräsmaschinen für die Herstellung von Stanzen und mit diesem Gerät ausgerüstete Maschinen Download PDF

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Publication number
EP0406784A2
EP0406784A2 EP90112633A EP90112633A EP0406784A2 EP 0406784 A2 EP0406784 A2 EP 0406784A2 EP 90112633 A EP90112633 A EP 90112633A EP 90112633 A EP90112633 A EP 90112633A EP 0406784 A2 EP0406784 A2 EP 0406784A2
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EP
European Patent Office
Prior art keywords
polynomial
trajectory
binary
speed
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90112633A
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English (en)
French (fr)
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EP0406784B1 (de
EP0406784A3 (en
Inventor
Piera Levi Montalcini
Antonio Racciu
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Advanced Data Processing ADP SRL
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Advanced Data Processing ADP SRL
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Publication date
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Publication of EP0406784A2 publication Critical patent/EP0406784A2/de
Publication of EP0406784A3 publication Critical patent/EP0406784A3/en
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Program-control systems
    • G05B19/02—Program-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form
    • G05B19/41—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form characterised by interpolation, e.g. the computation of intermediate points between programmed end points to define the path to be followed and the rate of travel along that path
    • G05B19/4103—Digital interpolation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/34—Director, elements to supervisory
    • G05B2219/34142—Polynomial

Definitions

  • the aim of the present invention is to eliminate these disadvantages, and, within the scope of this general aim, said invention has the important object of providing an electronic device which is suitable for directly interpolating tool trajectory arcs which are represented by polynomials of the n-th degree and are expressed as a function of a parameter, hereinafter termed curvilinear coordinate, which varies between zero and the length of said section of trajectory, thus obtaining corresponding continuous surfaces of the machined part which require no manual finishing intervention.
  • a first register 55 and a second register 56, as well as a binary subtractor 57, are arranged at the output of the binary adder 52.
  • the datum of theoretical position P tx (nT) is taken from the first register 55.
  • the theoretical speed datum V tx (nT) is taken from the output of the subtractor 57 and is obtained by means of the subtraction of the position at the instant nT from the position at the preceding instant (n-1)T which is performed by said subtractor 57.
  • a micro-line optical rule REx, REy and REz is rigidly associated with the frame of each movement unit, and a respective optical sensor SOx, SOy, SOz co-operates with each rule; the signals of the sensors SOx, SOy, SOz are converted, by means of respective position counters 70 x,y,z and registers 71 x,y,z , into a datum which corresponds to the actual positions Px(nT), Py(nT) and Pz(nT) of the tool.
  • a set of three logic circuits 80 compares the actual positions with the theoretical ones calculated by the polynomial generators 27, 28, 29 in order to generate a correction signal V(nT) x,y,z in terms of speed.

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  • Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Numerical Control (AREA)
EP90112633A 1989-07-05 1990-07-03 Elektronisches Polynomisches Interpolationsgerät für numerische Steuerungen von Werkzeugmaschinen, besonders für Fräsmaschinen für die Herstellung von Stanzen und mit diesem Gerät ausgerüstete Maschinen Expired - Lifetime EP0406784B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8967551A IT1232128B (it) 1989-07-05 1989-07-05 Dispositivo elettronico di interpolazione polinomiale per controlli numerici di macchine utensili, particolarmente fresatrici per la lavorazione di stampi e macchina incorporante detto dispositivo
IT6755189 1989-07-05

Publications (3)

Publication Number Publication Date
EP0406784A2 true EP0406784A2 (de) 1991-01-09
EP0406784A3 EP0406784A3 (en) 1991-02-20
EP0406784B1 EP0406784B1 (de) 1995-08-23

Family

ID=11303372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112633A Expired - Lifetime EP0406784B1 (de) 1989-07-05 1990-07-03 Elektronisches Polynomisches Interpolationsgerät für numerische Steuerungen von Werkzeugmaschinen, besonders für Fräsmaschinen für die Herstellung von Stanzen und mit diesem Gerät ausgerüstete Maschinen

Country Status (7)

Country Link
US (1) US5285394A (de)
EP (1) EP0406784B1 (de)
CA (1) CA2020434A1 (de)
DE (1) DE69021795T2 (de)
ES (1) ES2076264T3 (de)
IT (1) IT1232128B (de)
PT (1) PT94587B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992002871A1 (en) * 1990-08-08 1992-02-20 Digital Arts Film & Television Pty. Ltd. Motion control system for cinematography
DE4226236C1 (de) * 1992-08-05 1994-02-24 Mannesmann Ag Einrichtung für die Steuerung von elektronisch auslösbaren Mitteln
EP0665182A1 (de) * 1994-01-28 1995-08-02 Inventio Ag Verfahren zur Steuerung der Bewegung von Türen
EP0470564B1 (de) * 1990-08-06 1995-10-18 Cincinnati Milacron Inc. Verfahren und Einrichtung zur Steuerung der Bewegung eines Maschinenteiles
ES2081729A1 (es) * 1991-08-06 1996-03-01 Fagor S Coop Ltda Sistema para la representacion grafica de mecanizados de torno.
WO1997025661A1 (de) * 1996-01-12 1997-07-17 Heesemann Juergen Verfahren zur dezentralen steuerung eines motorantriebs
WO1998015880A1 (de) * 1996-10-08 1998-04-16 Siemens Aktiengesellschaft Verfahren und regelungsstruktur zur momentenvorsteuerung numerisch geregelter, elastischer und damit schwingungsfähiger mehrmassensysteme
US7392110B2 (en) 2003-07-08 2008-06-24 Mtu Aero Engines Gmbh Method and device for milling freeform surfaces

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5859787A (en) * 1995-11-09 1999-01-12 Chromatic Research, Inc. Arbitrary-ratio sampling rate converter using approximation by segmented polynomial functions
WO2001075538A1 (en) * 2000-03-31 2001-10-11 Incs Inc. Data generating device, data generating method and data generating program
EP2144127B1 (de) * 2008-07-08 2014-04-30 Siemens Aktiengesellschaft Verfahren und Steuergerät zum Aufsynchronisieren eines Aufnehmers eines Handlingsgerätes
JP5715215B2 (ja) * 2013-10-07 2015-05-07 ファナック株式会社 軌跡データの表示部を備えた工具軌跡表示装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1424767A (en) * 1973-03-28 1976-02-11 Osoboe K Bjuro Stanskostroenia Method of programme control of metalworking -machine tool and system for effecting same
US4581698A (en) * 1981-11-18 1986-04-08 General Electric Company Method and system for generating interpolation pulses
JPS59168513A (ja) * 1983-03-16 1984-09-22 Fanuc Ltd 加減速制御方式
US4663726A (en) * 1985-04-15 1987-05-05 General Electric Co. Robot control utilizing cubic spline interpolation
JPH0782554B2 (ja) * 1986-09-10 1995-09-06 フアナツク株式会社 曲面加工方法
CA1282142C (en) * 1986-10-21 1991-03-26 Sony Corporation Method for generating offset surface data
JPH01258106A (ja) * 1988-04-08 1989-10-16 Fanuc Ltd 空間曲線創成法
JPH02184970A (ja) * 1989-01-11 1990-07-19 Ricoh Co Ltd ３次式演算装置
US5060133A (en) * 1990-02-06 1991-10-22 Automation Intelligence, Inc. Transputer CNC processor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0470564B1 (de) * 1990-08-06 1995-10-18 Cincinnati Milacron Inc. Verfahren und Einrichtung zur Steuerung der Bewegung eines Maschinenteiles
WO1992002871A1 (en) * 1990-08-08 1992-02-20 Digital Arts Film & Television Pty. Ltd. Motion control system for cinematography
AU661825B2 (en) * 1990-08-08 1995-08-10 Digital Arts Film & Television Pty Ltd Motion control system for cinematography
US5457370A (en) * 1990-08-08 1995-10-10 Digital Arts Film And Television Pty Ltd Motion control system for cinematography
ES2081729A1 (es) * 1991-08-06 1996-03-01 Fagor S Coop Ltda Sistema para la representacion grafica de mecanizados de torno.
DE4226236C1 (de) * 1992-08-05 1994-02-24 Mannesmann Ag Einrichtung für die Steuerung von elektronisch auslösbaren Mitteln
EP0665182A1 (de) * 1994-01-28 1995-08-02 Inventio Ag Verfahren zur Steuerung der Bewegung von Türen
US5625175A (en) * 1994-01-28 1997-04-29 Inventio Ag Method and apparatus for controlling the movement of elevator car doors
WO1997025661A1 (de) * 1996-01-12 1997-07-17 Heesemann Juergen Verfahren zur dezentralen steuerung eines motorantriebs
WO1998015880A1 (de) * 1996-10-08 1998-04-16 Siemens Aktiengesellschaft Verfahren und regelungsstruktur zur momentenvorsteuerung numerisch geregelter, elastischer und damit schwingungsfähiger mehrmassensysteme
US6341244B1 (en) 1996-10-08 2002-01-22 Siemens Aktiengesellschaft Method and control structure for controlling moments in numerically controlled elastic (and therefore oscillation-capable) multiple mass systems
US7392110B2 (en) 2003-07-08 2008-06-24 Mtu Aero Engines Gmbh Method and device for milling freeform surfaces

Also Published As

Publication number Publication date
US5285394A (en) 1994-02-08
IT1232128B (it) 1992-01-23
IT8967551A0 (it) 1989-07-05
DE69021795D1 (de) 1995-09-28
PT94587A (pt) 1992-01-31
EP0406784B1 (de) 1995-08-23
PT94587B (pt) 1997-07-31
DE69021795T2 (de) 1996-05-02
CA2020434A1 (en) 1991-01-06
ES2076264T3 (es) 1995-11-01
EP0406784A3 (en) 1991-02-20

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